baber/WOPTO huggingface dataset:
Patent GB-805572-A (GB)
Title: Improvements in or relating to the production of titanium dioxide
Inventor: LEWIS ERNEST DALE
IPC: C01G23/07
Filed: 1957-01-22
Abstract: In the production of titanium dioxide by the vapour phase oxidation of titanium tetrahalide vapour containing minor proportions of an aluminium halide, the aluminium halide is formed in situ in the titanium tetrahalide vapour by fluidizing a bed formed of discrete aluminium metal particles and a major proportion of finely divided inert solid particles, with a gaseous mixture of titanium tetrahalide and chlorine, bromine or iodine.  The fluidized bed is maintained below the softening temperature of aluminium and above the condensation temperature of the resulting aluminium halides, for example at 180 DEG  to 400 DEG  C. A secondary chlorine inlet stream may be provided above the level of the fluidized bed to chlorinate any metallic aluminium particles entrained in the product gases.  The aluminium halide formed preferably constitutes from 0.1 to 10 per cent by weight of the titanium tetrahalide.  The inert solid employed may be quartz or a metal silicate and should preferably constitute about three times by weight the aluminium metal present.  The aluminium metal is preferably of a larger size than the inert solid and the aluminium addition may take place continuously, the rate of addition controlling the rate of aluminium halide production.  The invention is applicable to the production of aluminium chloride, bromide and iodide, normally in the presence of the corresponding titanium halide, but a mixture of chlorine and bromine vapour may be used to obtain a mixed aluminium halide product or the fluidizing gas may consist for example of chlorine with titanium bromide.  The titanium halide fluidizing gas normally constitutes twenty times the weight of the halogen vapour employed.  According to an example, 18 mols. of titanium tetrachloride vapour was mixed with 3 mols. of chlorine and employed to fluidize a bed consisting of mullite and granulated aluminium in a weight ratio of three to one.  Granulated aluminium was added at about 1 minute intervals at approximately 1 mol. per hour rate.  The bed temperature was held at 365 DEG  C. and the resulting titanium tetrachloride - aluminium trichloride-chlorine mixture was preheated to 850 DEG  C. and reacted with hot oxygen bearing gas containing 10 per cent excess oxygen and a small amount of water vapour.  The titania pigment contained about 1.05 per cent alumina by weight. Specifications 707,560 is referred to.
Patent GB-1106914-A (GB)
Title: Lockable hasps and staples
Inventor: FELTON FREDERICK DUDLEY
IPC: E05C19/08
Filed: 1966-01-19
Abstract: 1,106,914. Hasp fastenings. KEYMEN (WILLENHALL) Ltd. 21 Dec., 1966 [19 Jan., 1966], No. 2458/66. Heading E2A. In a hasp 13, 14 and staple 10, the hinge of the hasp is enclosed within the two parts thereof and includes a pin 17 which is rotatably mounted in both parts 13, 14 of the hasp, one of the parts providing a structure rendering the ends of the pin inaccessible when the hasp is secured to a door or other structure. As shown, the pin 17 is rotatably mounted in a part 16 of the hasp part 13 and the ends of the pin are retained in sockets in the part 14 by a pair of detachable members 19 secured by screws 20. The hasp is secured from the rear by bolts and the staple is secured from the front by screws which are inaccessible in the fastening position of the hasp part 13.
Patent GB-628147-A (GB)
Title: Improvements in the production of anhydrous zirconium tetrachloride and in the production of zirconium therefrom
IPC: C22B34/14
Filed: 1947-01-27
Abstract: Zirconium tetrachloride is prepared in substantially anhydrous form by enclosing it in a container sealed from the atmosphere, wetting the chloride with liquid titanium tetrachloride and evacuating the container interior to remove therefrom the hydrochloric acid gas, excess titanium tetrachloride and air contained therein and, during the evacuation, heating the zirconium tetrachloride to a temperature below its sublimation temperature to drive off the hydrochloric acid and excess titanium tetrachloride.ALSO:Zirconium metal powder is prepared free from oxide, nitride and hydride compounds by bringing anhydrous zirconium, tetrachloride vapour into reactive contact with a molten metal bath, consisting of a metal of the alkaline earth metal group, maintained at a temperature substantially below the boiling point of the metal in an inert atmosphere, e.g. of helium, having a pressure approximating atmospheric pressures.  Oxygen-free zirconium tetrachloride vapour may be passed over a molten bath of magnesium.  A quantity of zirconium tetrachloride and a quantity of alkaline earth metal may be enclosed in a container and spaced apart from each other, the quantity of the metal being substantially in excess of that required to reduce all the zirconium tetrachloride. The zirconium tetrachloride is wetted with titanium tetrachloride, the vessel is evacuated to remove air, excess titanium tetrachloride and any hydrochloric acid the vessel being gently heated to drive off the last traces of these substances until a continuously maintained low pressure is obtained.  The evacuating means is isolated from the vessel, which is filled to approximately atmospheric pressure with a monatomic gas, and the alkaline earth metal and zirconium tetrachloride are heated to melt the metal and sublime the tetrachloride, the temperature being maintained until all the tetrachloride has been sublimed into reactive contact with the alkaline earth metal.
Patent GB-241596-A (GB)
Title: Improvements in tiled roofs
IPC: E04D1/04
Filed: 1924-08-23
Abstract: 241,596. Gosden, A. Aug. 23. 1924. Roofing tiles. - Comprises a roofing-tile in which the flat lower portion A extending for approximately one half of its length is in the same plane as a narrow ridge or border A' running all round the edge of the remainder of the tile, the whole of the surface bounded by the ridge forming a single wedgeshaped depression B tapering from zero at a line adjacent to the flat portion of the tile to a maximum depth at the margined end B<2>. In a modified construction, a series of such wedge-shaped depressions are formed one above the other. The under surface of the tile is formed in a complementary manner to the upper surface, to secure substantially even thickness throughout the whole body of the tile. The upper part of the tile may be polygonal or rounded in shape instead of rectangular.
Patent GB-788450-A (GB)
Title: Improvements in calendering machines for finishing paper or the like
IPC: D21G1/00
Filed: 1955-01-29
Abstract: 788,450. Calenders for paper &c. HUNT & MOSCROP, Ltd., and HUNT, E. F. Jan. 30, 1956 [Jan. 29, 1955], No. 2752/55. Class 96. A line of short rolls D, each with trunnions d mounted in separate bearings, supports the lower roll A of a calender AB for paper &c. The bearings of the rolls D are mounted in slides E which are adjustable forwardly or rearwardly by screws &c. In a modification, there are two such lines of supporting rollers, one on either side of the central vertical plane of the calender, and with the rolls D of each line preferably staggered in relation to those of the other line.
Patent GB-577796-A (GB)
Title: Arrangement for aligning synchronised rotating devices
IPC: H04Q9/04
Filed: 1943-02-19
Abstract: 577,796. Synchronous movements. GERMANY, L. W., and PYE, Ltd. Feb. 19, 1943, No. 2828. [Class 40 (iii)] In a method of synchronizing two rotating bodies, each controls a contact, one contact being normally open but closed in a particular position and the other contact being normally closed but open in a particular position, the contacts being connected in series or parallel to a clutch and/or stop so as to arrest one body when the two bodies get out of synchronism. One body may be at a distant station and control, over a wire or radio link, a relay the contacts of which are in series or parallel with the contacts controlled by the other rotating body. Fig. 1 shows an arrangement in which two rotating bodies 10, 11 control contacts 12, 14 connected in parallel to a stop magnet 23 and clutch 18 driving the body 11. The invention is particularly applicable to the radiolocation system described in Specification 577,795.
Patent GB-304919-A (GB)
Title: Improvements in or relating to day and/or night signs
IPC: G09F13/14
Filed: 1928-01-28
Abstract: 304,919. Hayes, W. H. Jan. 28, 1928. No Patent granted (Sealing fee not paid). Taximeter flag and setting-spindle mechanism. -In signs of the type in which an internal mirror reflects light on to the rear of the facia an opaque shutter 25 is provided to reveal or conceal the facia 12 at will. The shutter is fixed on a shaft 26 and may be operated by links and levers 28, 29, 30 from, for example, the inside of a vehicle where a spindle 31, on which an operating handle 34 is mounted, is slidable under the influence of a spring and provided with registering stops. The mirror 16 is pivoted about a spindle 17, and can be moved by an exterior handle from a rear position in which it can reflect light entering through a glass top 15 to a forward position in which it reflects light from lamps 20. 'The lamps are controlled by two switches in series, normally self-opening. The switch 21 is closed by pressure thereon of the mirror 16 when in its forward position, and the switch 43 is closed by pressure of a plunger forced by a cam on the shutter 25 when this is in its raised position to reveal the facia. The facia may have the wording &c. stencilled on a mirror surface. The shutter-operating mechanism may be connected with the " flag " &c. of a taximeter.
Patent GB-1449584-A (GB)
Title: Process for the accelerated propagation of strawberry plants  by -micropropagation in vitro- and the plantlets obtained
IPC: A01H4/00
Filed: 1975-01-24
Abstract: 1449584 Propagating strawberries STATION DES CULTURES FRUITIERES ET MARAICHERES 24 Jan 1975 [19 July 1974] 3161/75 Heading A1E Strawberries are propagated by growing a plant in a sterile nutrient medium containing a cytoquinine, thus causing the formation of a mass of shoots. These shoots are then separated from the mother plant and can be grown in a sterile cytoquinine-rich nutrient solution so that they, in turn, develop a mass of shoots. The process is repeated until it is desired to obtain normal plants, at which stage the shoots are grown in a sterile nutrient medium from which cytoquinine is omitted. Under these conditions the shoots develop in about three weeks into plantlets which can be planted in a compost after a further one or two weeks and grown in a humid atmosphere for three to five weeks. The mother plantlet may be obtained by meristem culture.
Patent GB-825054-A (GB)
Title: Fuel feed and power control system for gas turbine engines
IPC: F02C9/16
Filed: 1956-02-01
Abstract: 825,054. Gas turbine plant. BENDIX AVIATION CORPORATION. Feb. 1, 1956 [Feb. 1, 1955], No. 3220/56. Class 110 (3). [Also in Group XXIX] A fuel feed and power control system for a gas turbine engine having a speed governor mechanism controlling fuel flow along a first steady state operating characteristic according to the setting of governor speed selecting means, has a device supplying thrust augmenting fluid to the engine in accordance with a second steady state characteristic, means initiating operation of this device, and a device effective upon actuation of the initiating means for resetting the governor mechanism to maintain engine speed at the value fixed by the selecting means. The speed of a gas turbine engine is controlled by an engine driven centrifugal governor 160 actuating a hinged leak-off valve 152 and having its loading spring 146 adjusted through a threedimensional cam 142 rotated manually at 44 and moved axially as a function of compressor inlet pressure and temperature. The valve 152 controls a leak of fuel supplied via inlet 82, a regulating valve 180 and restriction 182 from beneath a piston 122 having a follow-up spring 158 connected to the valve 152 and actuating through floating lever 124 a piston valve 90 controlling the fuel flow at 140 to an outlet 102 leading to the burners. The valve 90 is also rotated to control the port 140 by a rack 104 moved in response to compressor discharge pressure. Under steady state operating conditions the ports are disposed substantially as shown. During acceleration, the piston 122 moves a fuel valve extension 118 into contact with a three-dimensional cam 114, further downward movement of the piston also moving the lever pivot 130 downwardly against a spring 200 so that valve 90 is under the control of acceleration cam 114 rotated as a function of speed and moved axially as a function of compressor inlet temperature. When the manual control is set for maximum speed, i.e. maximum loading of spring 146, a cam on the control lever opens a valve permitting a thrust augmenting fluid, e.g. water or alcohol, to be pumped into the inlet of the compressor or the burner and a switch is closed to open the solenoid valve 218 permitting the water under pressure to act on diaphragm 232 to close a drain valve 230 and open valve 234 allowing inlet fuel pressure via 236 and restriction 212 to act on piston 134 and shift pivot 130 up to a position limited by stop 242, thereby resetting the governor to maintain its speed.
Patent GB-1346734-A (GB)
Title: Device for the application of a metal coating on the internal cy lindrical surface of a steel bottle for compressed or liquefied gases
IPC: C23C14/04
Filed: 1972-01-24
Abstract: 1346734 Coating with metals by evaporation COCKERILL-OUGREE-PROVIDENCE ET ESPERANCE-LONGDOZ EN ABREGE "COCKERILL" 24 Jan 1972 [22 Jan 1971] 3223/72 Heading C7F A hollow member, e.g. a steel bottle 8, is coated with e.g. Ni, Cr, Al, Cd, Co, Zn, by connecting a chamber 2 to the bottle and exhausting it with a pump 4, and then moving a steel wire 12 sheathed with the vapourisable metal along a guide bar 11 into the bottle. The coating operation may be repeated several times and the coated bottle may be tempered. In a modification Fig. 2 (not shown) the chamber consists of a box with a lid, in which the heating elements are mounted.
Patent GB-430312-A (GB)
Title: Reaction chambers for contact masses
IPC: B01J8/02
Filed: 1935-02-01
Abstract: 430,312. Catalytic apparatus. HOUDRY PROCESS CORPORATION, 19, Dover Green, Dover, Delaware, U.S.A. Feb. 1, 1935, No. 3318. Convention date, Feb. 20, 1934. [Class 1 (i)] In catalytic apparatus of the kind comprising a reaction chamber containing a contact mass and gasdistributing elements embedded in the mass the shape of the reaction chamber is modified so that an equal volume of contact material is disposed about each of the elements. For example a circular chamber 11 may be modified by the insertion of space-occupying members 19, 20, 21 between the walls and the distributing elements 17, 18. The members may be solid or hollow, or may be hollow forms filled in situ with cement, &c. They are preferably attached to the walls in a manner permitting free thermal expansion. Specifications 407,699 and 414,779 are referred to.
Patent GB-1304404-A (GB)
IPC: C07D215/06
Filed: 1970-01-23
Abstract: 1304404 Methylene substituted heterocyclic compounds EASTMAN KODAK CO 23 Jan 1970 [24 Jan 1969(2)] 3325/70 Heading C2C A monomeric 2-methylene-thiazoline, benzothiazoline, -naphthothiazoline, -benzoselenazoline, -naphthoselenazoline, and -(1,2) dihydroquinoline are prepared by reacting under anhydrous conditions a corresponding 2-methyl quaternary salt with a non-hydroxylic base in the presence of a proton acceptor which inhibits build-up of the hydro salt of the non-hydroxylic base.
Patent GB-541357-A (GB)
Title: Improvements in or relating to the production of glycerol
IPC: C07C31/22
Filed: 1940-02-23
Abstract: 541,357. Glycerol. DU PONT DE NEMOURS & CO., E. I. Feb. 23, 1940, No. 3436. Convention date, Feb. 24, 1939. [Class 2 (iii)] Glycerol is obtained by hydrolysis of a #- alkyl ether with an aqueous hydrolysis catalyst such as sulphuric, phosphoric, hydrochloric, hydrobromic or hydriodic acid. At atmospheric pressure a halogen acid should be used in at least equivalent quantity so that an alkyl halide is formed ; at higher pressure, such as 5-1000 atmospheres a small quantity of acid is sufficient, glycerol and an alcohol being formed. Examples describe the hydrolysis of the #-methyl ether with hydrochloric, hydrobromic and hydriodic acid, both methods being exemplified. In one example the hydrochloric acid and is used with additions of ferric chloride and hydriodic acid and in another with tetramethylammonium chloride. The initial ethers may be made by hydrogenation of alkyl ethers of alkyl glycerates as described in Specification 541,360.
Patent GB-607439-A (GB)
Title: Improvements in or relating to balancing gear
IPC: B66B7/06
Filed: 1946-02-04
Abstract: 607,439. Counterbalancing guns. WALKER, G. E., HURSEY, C. T. W., and MITCHELL, S. S. C. Feb. 4, 1946, No. 3515. [Class 92 (i)] [Also in Group XXX] A balancing gear for pivotally mounted members such as guns in which springs 5, 6, 7 under compression are connected by a chain or cable 18 to the pivotally mounted member to balance the gravitational moment, the chain is connected by a pin 15 supported eccentrically upon rotary plates 14, or on sliding blocks, which are adjustable to vary the angular position of the pin with relation to the pivot 11 of the pivotally mounted member and to vary the distance between the pivot 11 and the pin 15. The balancing gear comprises two similar tubular casings 1 closed at one end by caps 2, the casings being secured to a member such as the carriage of the gun. In each casing is a rod 3 with piston 4 urged towards cap 2 by springs 5, 6, 7. Brackets 8 with washers 8a, if necessary, are secured by bolts 9 to a gun cradle 10 movable with the gun about its pivot 11. Each bracket has parallel arms 12 mounted in which are eccentrics comprising rotary plates 14 supporting pin 15 which carries plate 16 upon which is mounted shackle 17. A chain 18 connects rod 3 to shackle 17 and engages roller 19. The chain is kept taut by the springs and the adjustment of pin 15 produces a balance against the gravitational moment. Graduations may be marked on arms 12, 13 around plate 14 to facilitate adjustment. The numbers of springs, chains and casings may be modified.
Patent GB-617894-A (GB)
Title: Improvements in yarn winding machines
IPC: B65H54/32
Filed: 1946-02-05
Abstract: 617,894. Winding yarn. DEHN, S. G. (U.S. Textile Machine Co.). Feb. 5, 1946, No. 3638. [Class 120(ii)] Instead of the inclination of the track member 36 being varied, with the growth in the size of the wound package, by a rod 38, as set forth in Specification 608,675, the slope of the track member 44, which is spring-urged about its pivot-point, is automatically varied by a rod 46 connected thereto and kept in engagement with a plate 48, pivoted to the moving arm 32 supporting the package, the plate 48 carrying a cam plate 68 surfaces 68a of which move the rod 46 vertically by pressure against a roller 70 attached to a fixed bracket 71. In a modification, Fig. 15, the rod 46 is moved by a sliding cam element 76 operated by a cam-shaped frame 82a connected at its lower end to the pivots of the arms 32 and moved outwardly at its. upper end by a roller situated between the package and its driving drum.
Patent GB-545980-A (GB)
Title: Improvements in fasteners for securing wires and the like
IPC: H02G7/05
Filed: 1942-02-11
Abstract: 545,980. Clip fasteners for wirework. CARR FASTENER CO., Ltd., and WAGSTAFF, G. Feb. 11, 1941, No. 3692/41. [Class 45] A substantially cruciform blank has wider portions which are adapted to be turned by a tool to enclose and hold the formation of a bight, the wide portions 13 of the blank enclosing the wire and the narrower. portions 14, which may be tapered, being bent up to space apart the wire runs.
Patent GB-607500-A (GB)
Title: Improvements in and relating to piezoelectric apparatus
IPC: H03H9/19
Filed: 1946-02-06
Abstract: 607,500. Piezo-electric crystals &c. BRITISH THOMSON-HOUSTON CO., Ltd. Feb. 6, 1946, No. 3747. Convention date, Feb. 13, 1945. [Class 40 (v)] A quartz element 1 having a frequency of 50-250 k.c. in a face shear mode, and a low temperature coefficient of frequency, is cut from the natural crystal in a plane 4 which cuts the X, Y plane at an angle of 30 degrees (and thus includes a Y axis) and which is inclined to the Z axis at an angle in the range 45-60 degrees. The element 1 is rectangular and has its length dimension in either of two directions at an.angle of 45 degrees to the intersection of the crystal plane 4 and the X, Y plane. For particular values of the orientation angles, corresponding values of the ratio W/L. of the width to the length of the crystal are chosen to give a low temperature coefficient.
Patent GB-1017874-A (GB)
Title: Sealing devices
IPC: B65B13/10
Filed: 1962-08-22
Abstract: 1,017,874. Seals and sealing. CARISTRAP INTERNATIONAL Ltd. Aug. 22, 1962 [Dec. 6, 1961], No. 3752/65. Divided out of 1,017,873. Heading B6P. [Also in Division B8] The subject-matter is the same as part of that of Specification 32309/62, but the claims are directed to the sealing device.
Patent GB-820387-A (GB)
Title: Improvements in closed-circuit thermal power plants
IPC: F01D15/10
Filed: 1957-02-04
Abstract: 820,387. Gas turbine plant. ESCHER WYSS A.G. Feb. 4, 1957 [Feb. 15, 1956], No. 3782/67. Class 110 (3). [Also in Group XXXV] In a thermal power plant wherein gas, e.g. helium, passes in a closed circuit including one or more compressors 6, 8, a heater 1, one or more turbines 2, 3 and coolers 5, 7, a generator coupled to one of the turbines or compressors has its closed housing gas-tightly joined to the turbine or compressor coupled thereto. As shown, the generator 9 is cooled by some of the gas from the low-pressure side of compressor 6 returned to the circuit by pump 14. Gas may also be passed through the starting motor 17.
Patent GB-537445-A (GB)
Title: Improvements in or relating to the construction of metal skin covered wings for aircraft
IPC: B64C3/00
Filed: 1940-02-29
Abstract: 537,445. Aircraft wing structures. FAIREY AVIATION CO., Ltd., and CHAPLIN, H. E. Feb. 29, 1940, No. 3804. [Class 4] In an aircraft wing formed from three sections comprising front and rear sections a, b, each constructed as a complete unit, and a middle section to the spars and metal skin of which the front and rear sections may be united by means of flanges c thereon, the skin of the middle section is composed at its upper surface of a continuous strip m at its lower surface, at least in part, of three strips n, o, p, the front and rear strips n, o, being united at their leading and trailing edges respectively to the spars of the middle section and the third strip p being secured in position after the sections of the wing have been assembled. The spars of the middle section comprise booms f of angle section with the flanges facing towards one another and webs g with vertical stiffeners riveted thereto at each rib station. The webs are slotted to receive projecting plates e connected to the shear bracing members d, d of the front and rear sections, the plates e then being riveted to the vertical stiffeners on the webs. The flanges c of the end sections and the outside edges of the strips m, n, and o are riveted to the flanges of the booms f. The inside edges of the strips n, o are riveted to stringers 9, Fig. 2, a flange r of which overlaps the edge and has secured to its inner side a wooden batten s to which the closing strip p is attached in a detachable manner, such as by screws t.